Makefile changes to include Highlighter Sail

Makefile

@@ -68,13 +68,14 @@ OPTIONS := --trace \
            -a mathematical-format=svg \
            -a pdf-fontsdir=docs-resources/fonts \
            -a pdf-theme=docs-resources/themes/riscv-pdf.yml \
-           $(XTRA_ADOC_OPTS) \
+		   $(XTRA_ADOC_OPTS) \
            -D build \
            --failure-level=ERROR
 REQUIRES := --require=asciidoctor-bibtex \
             --require=asciidoctor-diagram \
             --require=asciidoctor-lists \
-            --require=asciidoctor-mathematical
+            --require=asciidoctor-mathematical \
+			--require=./docs-resources/extensions/asciidoctor-sail/asciidoctor-sail.rb
 
 .PHONY: all build clean build-container build-no-container build-docs build-pdf build-html build-epub
 
@@ -129,4 +130,4 @@ docker-pull-latest:
 clean:
 	@echo "Cleaning up generated files..."
 	rm -rf $(BUILD_DIR)
-	@echo "Cleanup completed."
+	@echo "Cleanup completed."